chore: remove connect_string fixture from unit test (GoogleCloudPlatform#260)

Author: jackwotherspoon

tests/unit/test_connector.py

@@ -26,10 +26,9 @@
 from typing import Any
 
 
-def test_connect_timeout(
-    connect_string: str, async_loop: asyncio.AbstractEventLoop
-) -> None:
+def test_connect_timeout(async_loop: asyncio.AbstractEventLoop) -> None:
     timeout = 10
+    connect_string = "test-project:test-region:test-instance"
 
     async def timeout_stub(*args: Any, **kwargs: Any) -> None:
         try: